The chart shows the market share decline of both desktop PCs (from 23% in 2010 to just 12% in 2012) and laptops (from 29% to 17%), while tablets grew from 3% to 11% and smartphones from 45% to 60%. Overall, PCs have seen their share of the total smart connected device market fall from roughly 50% to just 30% in only two years.

The figures do not, of course, necessarily indicate device preference, as some may choose a cheaper device for financial reasons, especially in developing markets.

Across the four markets, Apple increased its market share from 16.3% in 2011 to 18.2% in 2012, but dropped from first to second place as it was outpaced by Samsung, whose market share grew from 12.3% to 20.8%.

I still hate the idea of "post PC". None of these portable devices replaces a laptop or a desktop computer. Its simply Post PC because Apple said so, and people like to do what they are told.

When you start seeing tat most people you knew carrying laptops in the past are now carrying Tablets instead, then you know it's a "Post-PC Era".
There are many situations in which an iPad can do most of your required tasks without the need for a laptop or desktop.

I still hate the idea of "post PC". None of these portable devices replaces a laptop or a desktop computer. Its simply Post PC because Apple said so, and people like to do what they are told.

No, it's people who have voted with their wallets. While (currently) these devices can't do everything a laptop or desktop can do, most people don't need a laptop or desktop. A smartphone or tablet is the most appropriate tool.

There will always be a need for powerful computing devices, just not by the common man.

It's not much of a comparison between Apple and Samsung. it's a lot like Comparing a Mercedes S Class with an entry level Hyundai. The numbers do not tell the real story. Samsung gives away close-top, cheap plastic boxes which are probably just the thing to get your ten year old who will drop it or lose it. Brand S is picking up the bottom of the market at a lower price point and lower profit and they treat their customers accordingly. Not everyone can afford or appreciate the Mercedes S Class which is why there are beaters.